gumstix-users

Dear all,
I work on Gumstix Overo Fire COM with custom recipe based on 2.6.29
linux kernel and I have few question about saving power.
I would like to have more information about how to power off the WIFI
and Bluetooth module (Marvell chip).
Is it possible to disable this chip in order to save power?
How can I do it?
Is there any GPIO to control the Marvell chip?
Thank you in advance for replies!
Regards,
Sébastien